I'll third that! 

Although, I sometimes use straight 91% for certain paint effects.

I use either 70% or 91% alcohol for cleaning brushes and the air brush. But stick with the brand  thinner (Tamiya ..ect). When thinning the paint to air brush.

My 2 cents..........

Gus wrote:

So I guess it doesn't matter if you don't add too much then. Thanks!

Adding too much retarder can cause serious problems with your paint. Up to a certain amount, retarders slow the drying and curing of the paint. Beyond that amount and they do one of two things:

1. The paint never cures.
2. The paint cures instantly, curdling in your airbrush.

) In short, your paint will be all flocked up…

So I guess it doesn't matter if you don't add too much then.

Thanks!

styrene wrote:

Triarius wrote: Tamiya thinner contains an acrylic retarder. If you use 90+% isopropyl alcohol, you have to add your own.   Ross, Does it matter if one is already retarded? Gip

Only if they call you "Snake-eye"…

Triarius wrote:

Tamiya thinner contains an acrylic retarder. If you use 90+% isopropyl alcohol, you have to add your own.

Ross,

Does it matter if one is already retarded?

Gip